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Kenaf cellulose-based poly(amidoxime) ligand for adsorption of rare earth ions

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Rare metals 2019年第3期38卷 259-269页

作者： md Lutfor Rahman m.hd sani sarjadi Sazmal Effendi Arshad mashitah m. Yusoff Shaheen m. Sarkar Baba musta Faculty of Science and Natural Resources Universiti Malaysia Sabah Faculty of Industrial Sciences and Technology University Malaysia Pahang

A well-known adsorbent, poly(amidoxime)ligand, was prepared from polyacrylonitrile(PAN) grafted kenaf cellulose, and subsequent characterization was performed by Fourier transform infrared spectroscopy(FTIR),field emission scanning electron microscope(FESEm) and inductively coupled plasma mass spectrometry(ICP-mS).The adsorption capacities of the prepared ligand for rare earth metals are found to be excellent, with adsorptions of La^(3+), Ce^(3+), Pr^(3+), Gd^(3+) and Nd^(3+) experimentally determined to be 262, 255, 244, 241 and 233 mg·g^(-1), respectively, at pH 6. The experimental values of the adsorption of rare earth metals are well matched with the pseudosecond-order rate equation. The reusability of the adsorbent is examined for seven cycles of sorption/desorption,demonstrating that the proposed adsorbent could be reused for over seven cycles without any significant loss in the original removal capability of the ligand.

关键词： Adsorption Poly(amidoxime) Rare earths Separation Kenaf cellulose

Synthesis of ion imprinted polymers for selective recognition and separation of rare earth metals

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Journal of Rare Earths 2017年第2期35卷 177-186页

作者： mashitah m.Yusoff Nik Rohani Nik mostapa md Shaheen Sarkar Tapan Kumar Biswas md Lutfor Rahman Sazmal Effendi Arshad m.hd sani sarjadi Ajaykumar D.Kulkarni Faculty of Industrial Sciences and Technology University Malaysia Pahang Faculty of Science and Natural Resources Universiti Malaysia Sabah Department of Applied Sciences MIT Academy of Engineering

Lanthanide-ion imprinted polymers（L-IIPs） were synthesized by stoichiometric amounts of rare earth ions and the cavities in the polymers were created for the corresponding lanthanide ions. The maximum sorption capacities were estimated to be 125.3, 126.5, 127.6, 128.2 and 129.1 mg/g for Pr, Nd, Sm, Eu and Gd, respectively at p H 6. In the selectivity study, the L-IIPs exhibited good selectivity to the specific rare earth ions in the presence of coexisting cations. The imprinting results were found to be excellent with some rare earth ions over other competitor rare earth ions with the same charges and close ionic radius.

关键词： ion-imprinted polymers rare earths separation adsorption lanthanide-ions

A Survey on Deep Learning-Based 2D Human Pose Estimation models

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Computers, materials & Continua 2023年第8期76卷 2385-2400页

作者： sani Salisu A.S.A.mohamed m.H.Jaafar Ainun S.B.Pauzi Hussain A.Younis School of Computer Science Universiti Sains MalaysiaPenang11800Malaysia Department of Information Technology Faculty of ComputingFederal University DutseJigawa720211Nigeria School of Industrial Technology Universiti Sains MalaysiaPenang11800Malaysia College of Education for Women University of BasrahBasrah61004Iraqi

In this article,a comprehensive survey of deep learning-based(DLbased)human pose estimation(HPE)that can help researchers in the domain of computer vision is *** is among the fastest-growing research domains of computer vision and is used in solving several problems for human *** the detailed introduction,three different human body modes followed by the main stages of HPE and two pipelines of twodimensional(2D)HPE are *** details of the four components of HPE are also *** keypoints output format of two popular 2D HPE datasets and the most cited DL-based HPE articles from the year of breakthrough are both shown in tabular *** study intends to highlight the limitations of published reviews and surveys respecting presenting a systematic review of the current DL-based solution to the 2D HPE ***,a detailed and meaningful survey that will guide new and existing researchers on DL-based 2D HPE models is ***,some future research directions in the field of HPE,such as limited data on disabled persons and multi-training DL-based models,are revealed to encourage researchers and promote the growth of HPE research.

关键词： Human pose estimation deep learning 2D dataset models body parts

An Optimal Framework for SDN Based on Deep Neural Network

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Computers, materials & Continua 2022年第10期73卷 1125-1140页

作者： Abdallah Abdallah mohamad Khairi Ishak Nor Samsiah sani Imran Khan Fahad RAlbogamy Hirofumi Amano Samih m.mostafa Department of Industrial Engineering School of Applied Technical Sciences German Jordanian UniversityAmman35247Jordan School of Electrical and Electronic Engineering Universiti Sains MalaysiaNibong Tebal14300Malaysia Center for Artificial Intelligence Technology Faculty of Information Science and TechnologyThe National University of Malaysia(UKM)Bangi43600SelangorMalaysia Department of Electrical Engineering University of Engineering and TechnologyPeshawar814Pakistan Turabah University College Computer Sciences ProgramTaif UniversityTaif21944Saudi Arabia Research Institute for Information Technology Kyushu UniversityFukuoka819-0395Japan Computer Science-mathematics Department Faculty of ScienceSouth Valley UniversityQena83523Egypt

Software-defined networking(SDN)is a new paradigm that promises to change by breaking vertical integration,decoupling network control logic from the underlying routers and switches,promoting(logical)network control centralization,and introducing network ***,the controller is similarly vulnerable to a“single point of failure”,an attacker can execute a distributed denial of service(DDoS)attack that invalidates the controller and compromises the network security in *** address the problem of DDoS traffic detection in SDN,a novel detection approach based on information entropy and deep neural network(DNN)is *** approach contains a DNN-based DDoS traffic detection module and an information-based entropy initial inspection *** initial inspection module detects the suspicious network traffic by computing the information entropy value of the data packet’s source and destination Internet Protocol(IP)addresses,and then identifies it using the DDoS detection module based on *** assaults were found when suspected irregular traffic was *** reveal that the algorithm recognizes DDoS activity at a rate of more than 99%,with a much better accuracy *** false alarm rate(FAR)is much lower than that of the information entropy-based detection ***,the proposed framework can shorten the detection time and improve the resource utilization efficiency.

关键词： Deep neural network computer networks data security optimization

mEC-IoT-Healthcare: Analysis and Prospects

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Computers, materials & Continua 2023年第6期75卷 6219-6250页

作者： Hongyuan Wang mohammed Dauwed Imran Khan Nor Samsiah sani Hasmila Amirah Omar Hirofumi Amano Samih m.mostafa College of Computer Science Guangdong University of Science and TechnologyDongGuan523083China Department of medical Instrumentation Techniques Engineering Dijlah University CollegeBaghdadIraq Department of Electrical Engineering University of Engineering&TechnologyPeshawar814Pakistan Center for Artificial Intelligence Technology Faculty of Information Science and TechnologyUniversiti Kebangsaan Malaysia43600BangiSelangorMalaysia Research Institute for Information Technology Kyushu UniversityFukuoka819-0395Japan Computer Science-mathematics Department Faculty of ScienceSouth Valley UniversityQena83523Egypt

Physical sensors,intelligent sensors,and output recommenda-tions are all examples of smart health technology that can be used to monitor patients’health and change their *** health is an Internet-of-Things(IoT)-aware network and sensing infrastructure that provides real-time,intelligent,and ubiquitous healthcare *** of the rapid development of cloud computing,as well as related technologies such as fog computing,smart health research is progressively moving in the right ***,fog computing,IoT sensors,blockchain,privacy and security,and other related technologies have been the focus of smart health research in recent *** the moment,the focus in cloud and smart health research is on how to use the cloud to solve the problem of enormous health data and enhance service performance,including cloud storage,retrieval,and calculation of health big *** article reviews state-of-the-art edge computing methods that has shifted to the collection,transmission,and calculation of health data,which includes various sensors and wearable devices used to collect health data,various wireless sensor technologies,and how to process health data and improve edge performance,among other ***,the typical smart health application cases,blockchain’s application in smart health,and related privacy and security issues were reviewed,as well as future difficulties and potential for smart health *** comparative analysis provides a reference for the the mobile edge computing in healthcare systems.

关键词： IoT mobile-edge computing cloud computing e-health

The potential of gene therapies for spinal cord injury repair:a systematic review and meta-analysis of pre-clinical studies

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Neural Regeneration Research 2023年第2期18卷 299-305页

作者： Catriona J.Cunningham mindaugas Viskontas Krzysztof Janowicz Yasmin sani malin EHåkansson Anastasia Heidari Wenlong Huang Xuenong Bo Institute of medical Sciences School of MedicineMedical Sciences&NutritionUniversity of AberdeenAberdeenUK Centre for Neuroscience Surgery and TraumaBlizard InstituteBarts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK

Currently,there is no cure for traumatic spinal co rd injury but one therapeutic approach showing promise is gene *** this systematic review and meta-analysis,we aim to assess the efficacy of gene therapies in pre-clinical models of spinal cord injury and the risk of *** this metaanalysis,registe red at PROSPERO(Registration ID:CRD42020185008),we identified relevant controlled in vivo studies published in English by searching the Pubmed,Web of Science,and Embase *** restrictions of the year of publication were applied and the last literature search was conducted on August 3,*** then conducted a random-effects meta-analysis using the restricted maximum likelihood estimator.A total of 71 studies met our inclusion crite ria and were included in the systematic *** results showed that overall,gene therapies were associated with improvements in locomotor score(standardized mean difference[SmD]:2.07,95%confidence interval[CI]:1.68-2.47,Tau^(2)=2.13,I^(2)=83.6%)and axonal regrowth(SmD:2.78,95%CI:1.92-3.65,Tau^(2)=4.13,I^(2)=85.5%).There was significant asymmetry in the funnel plots of both outcome measures indicating the presence of publication *** used a modified CAmARADES(Collaborative Approach to m eta-Analysis and Review of Animal Data in Experimental Studies)checklist to assess the risk of bias,finding that the median score was 4(IQR:3-5).In particula r,reports of allocation concealment and sample size calculations were *** conclusion,gene therapies are showing promise as therapies for spinal co rd injury repair,but there is no consensus on which gene or genes should be targeted.

关键词： animal models gene delivery meta-analysis regenerative medicine spinal cord injury systematic review viral vectors

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal microstructure Applicable in mEmS Accelerometers

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Photonic Sensors 2021年第4期11卷 457-471页

作者： mojtaba HOSSEINZADEH sani Hamed SAGHAEI mohammad Amin mEHRANPOUR Afsaneh ASGARIYAN TABRIZI Department of Electrical Engineering Imam Reza International UniversityMashhad ***Iran Department of Electrical Engineering Shahrekord BranchIslamic Azaci UniversityShahrekord ***Iran Department of Electrical Engineering Sari BranchIslamic Azad UniversitySari ***Iran Academic Center for Education Cultureand Research(ACECR)Tabriz ***Iran

In view of the large scientific and technical interest in the microelectromechanical system(mEmS)accelerometer sensor and the limitations of capacitive,resistive piezo,and piezoelectric methods,we focus on the measurement of the seismic mass displacement using a novel design of the all-optical sensor(AOS).The proposed AOS consists of two waveguides and a ring resonator in a two-dimensional rod-based photonic crystal(PhC)microstructure,and a holder which connects the central rod of a nanocavity to a proof *** photonic band structure of the AOS is calculated with the plane-wave expansion approach for TE and Tm polarization modes,and the light wave propagation inside the sensor is analyzed by solving maxwelFs equations using the finite-difference time-domain *** results of our simulations demonstrate that the fundamental PhC has a free spectral range of about 730 nm covering the optical communication *** also show that the AOS has the resonant peak of 0.8 at 1.644μm,quality factor of 3288,full width at half maximum of 0.5nm,and figure of merit of ***,for the maximum 200nm nanocavity displacements in the x-or y-direction,the resonant wavelengths shift to 1.618μm and 1.547μm,*** also calculate all characteristics of the nanocavity displacement in positive and negative directions of the jc-axis and *** small area of 104.35μm^(2)and short propagation time of the AOS make it an interesting sensor for various applications,especially in the vehicle navigation systems and aviation safety tools.

关键词： Photonic crystal mEmS accelerometer sensor tunable resonator finite-difference time-domain method

Analytical study of silane-based and wax-based additives on the interfacial bonding characteristics between natural rubber modified binder and different aggregate types

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Journal of Road Engineering 2023年第2期3卷 171-185页

作者： Ashiru sani m.hd Rosli m.hd Hasan Khairul Anuar Shariff Najib mukhtar mohammad Nishat Akhtar Ikenna D.Uwanuakwa Qingli Dai Tracy Leh Xin Wong School of Civil Engineering Universiti Sains MalaysiaNibong Tebal 14300Malaysia Department of Civil Engineering Kano University of Science and TechnologyKano 3244Nigeria School of materials and mineral Resources Engineering Universiti Sains MalaysiaNibong Tebal 14300Malaysia Department of Civil Engineering Bayero UniversityKano 700241Nigeria School of Aerospace Engineering Universiti Sains MalaysiaNibong Tebal 14300Malaysia Department of Civil Engineering Near East UniversityMersin 99138Turkey Department of Civil EnvironmentalAnd Geospatial EngineeringMichigan Technological UniversityHoughtonMI 49931USA

The modification of asphalt binder with natural rubber latex(NR)significantly improves the rutting and fatigue resistance of asphalt ***,NR-modified binder is prone to low workability and wettability due to its high ***,this research focuses on examining the influences of silane and wax-based additives on the wettability of natural rubber-modified binders and the binder-aggregates adhesion *** this study,experimental and analytical approaches were *** contact angles of asphalt binder were measured using a goniometer through the sessile drop method with three solvents:deionised water,formamide,and *** Cþþalgorithm was adopted to compute the surface free energy(SFE)elements of the asphalt *** methods were employed to analyse the results based on the Young-Dupre equation,followed by linear regression to establish a correlation between the compatibility ratio(CR)and the SFE *** results inferred that modified asphalt binders with additives possessed improved moisture resistance,wherein dry work adhesion values were less than 210 mJ/m^(2)under granite interfaces,whereas the limestone interface exhibited higher dry adhesion values of 340 mJ/m^(2)and *** performance results were observed under wet adhesion conditions;with granite wet adhesive values observed below 120 mJ/m^(2),while limestone wet adhesion values were ascertained below 180 mJ/m^(2)for all tested samples and *** to the spread–ability coefficient results,the limestone interface has greater spread-ability than granite ***,compatibility ratio values indicated better compatibility of 1.9 or higher for tested samples under granite interfaces,whereas compatibility values of 1.7 and below were observed under limestone interfaces.

关键词： Bitumen Compatibility ratio Fracture resistance Surface free energy Additiv

The effect of tailing lipidation on the bioactivity of antimicrobial peptides and their aggregation tendency Special Issue:Emerging Investigators

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聚集体(英文)

聚集体(英文) 2023年第4期4卷 195-209页

作者： Bruce Lin Andrew Hung William Singleton Kevion K.Darmawan Rachael moses Bicheng Yao Hongkang Wu Anders Barlow marc-Antoine sani Alastair J.Sloan mohammed Akhter Hossain John D.Wade Yuning Hong Neil m.O’Brien-Simpson Wenyi Li The Bio21 Institute of molecular Science and Biotechnology University of MelbourneMelbourneVictoriaAustralia ACTV Research group Melbourne Dental SchoolCentre for Oral Health ResearchUniversity of MelbourneMelbourneVictoriaAustralia School of Science RMIT UniversityMelbourneVictoriaAustralia melbourne Dental School Division of Basic and Clinical Oral SciencesUniversity of MelbourneMelbourneVictoriaAustralia Department of Biochemistry and Chemistry La Trobe Institute for Molecular ScienceLa Trobe UniversityMelbourneVictoriaAustralia Florey Institute of Neuroscience and mental Health University of MelbourneMelbourneVictoriaAustralia School of Chemistry University of MelbourneMelbourneVictoriaAustralia materials Characterisation and Fabrication Platform University of MelbourneMelbourneVictoriaAustralia

Antimicrobial peptides(AmPs)are potentially powerful alternatives to conven-tional antibiotics in combating multidrug resistance,given their broad spectrum of *** mainly interact with cell membranes through surface electrostatic potentials and the formation of secondary structures,resulting in permeability and destruction of target microorganism *** earlier work showed that two leading AmPs,mSI-78(4–20)and pardaxin(1–22),had potent antimicrobial activ-ity against a range of *** is known that the attachment of moderate-length lipid carbon chains to cationic peptides can further improve the functionality of these peptides through enhanced interactions with the membrane lipid bilayer,inducing membrane curvature,destabilization,and potential ***,in this work,we aimed to investigate the antimicrobial activity,oligomerization propensity,and lipid-membrane binding interactions of a range of N-terminal lipidated analogs of mSI-78(4–20)and pardaxin(1–22).molecular modeling results suggest that aggregation of the N-lipidated AmPs may impart greater structural stability to the peptides in solu-tion and a greater depth of lipid bilayer insertion for the N-lipidated AmPs over the parental *** experimental and computationalfindings provide insights into how N-terminal lipidation of AmPs may alter their conformations,with subsequent effects on their functional properties in regard to their self-aggregation behavior,membrane interactions,and antimicrobial activity.

关键词： aggregation antimicrobial peptide lipidation membrane active peptide